In August Emily's clothing store sold 460 shirts with the ration of short sleeve to long sleeve being 3:7. How many short sleeve shirts where sold?

138 short sleve shirts

step 1) add up the ratio of short to long sleve shirts: 3 + 7 = 10

step 2) divide the total # of shirts by 10: 460 / 10 = 46

step 3) because you are finding how many short sleeve shirts are sold, you multiply 46 x 3 = 138 short sleave shirts